How long does it take to bleed cooling system?
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01-11-2019, 02:35 PM
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How long does it take to bleed cooling system?
How long does it take to bleed cooling system? Do i still have air in the system? or do i have another problem?
I spent all day trying to bleed my car yesterday, and it is still overheating after like 15 min of idle with no heat.
I flushed the coolant because i heard swooshing in dash and also after driving it hard it overheated. I popped hood and saw that my reservoir tank was conpletely full so i assumed it was not completely bled and the air was pushed to the reservoir.
I spent all day trying to bleed my car yesterday, and it is still overheating after like 15 min of idle with no heat.
I flushed the coolant because i heard swooshing in dash and also after driving it hard it overheated. I popped hood and saw that my reservoir tank was conpletely full so i assumed it was not completely bled and the air was pushed to the reservoir.
#2
01-11-2019, 02:53 PM
#3
01-11-2019, 03:38 PM
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If there's no heat at idle it's not bled properly.
It took me hours and hours to do it the first time without a Lilse funnel, and directly afterwards I "overheated" on the highway after my coolant temp sensor decided it didn't like getting soaked in coolant repeatedly from the heater core bleed valve.
It took me hours and hours to do it the first time without a Lilse funnel, and directly afterwards I "overheated" on the highway after my coolant temp sensor decided it didn't like getting soaked in coolant repeatedly from the heater core bleed valve.
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01-11-2019, 04:30 PM
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If there's no heat at idle it's not bled properly.
It took me hours and hours to do it the first time without a Lilse funnel, and directly afterwards I "overheated" on the highway after my coolant temp sensor decided it didn't like getting soaked in coolant repeatedly from the heater core bleed valve.
It took me hours and hours to do it the first time without a Lilse funnel, and directly afterwards I "overheated" on the highway after my coolant temp sensor decided it didn't like getting soaked in coolant repeatedly from the heater core bleed valve.
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01-11-2019, 04:32 PM
#7
01-11-2019, 05:36 PM
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I haven't had any issues on 3 different G35 and one 350Z in the last year. Open the bleed valve, add coolant VERY SLOWLY it takes well over a minute for me to add 1 gallon and close the valve when it spills out then fill radiator till full, start the engine with the heater on high and max fanspeed, wwhen it's almost completely hot rev it to about 5k rpm and hold it for about 10 seconds then go for a very short drive around the block but run it hard. Return to the shop, let it cool with a blower fan on it to speed up the process, open the radiator and top it off, top off the reservoir and then go for a normal drive.
If you add coolant quickly you're guaranteed to trap air in it.
If you add coolant quickly you're guaranteed to trap air in it.
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01-12-2019, 09:18 AM
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It also helps with the bleeding process to have the front end of the car jacked up. That encourages any air to move up to the highest point in the system which is the radiator cap area. Also squeezing both radiator hoses can help move things, just make sure your thermostat is working properly.
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01-12-2019, 11:39 AM
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#12
01-12-2019, 11:40 AM
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It also helps with the bleeding process to have the front end of the car jacked up. That encourages any air to move up to the highest point in the system which is the radiator cap area. Also squeezing both radiator hoses can help move things, just make sure your thermostat is working properly.
#13
01-12-2019, 07:17 PM
This how I bleed my car and I've done it several times.
install funnel
pour coolant
fill reservoir full
leave funnel full
start car heat on full
squeeze both hoses
rev car to about 2000 rpm several times
i go off how the radiator hoses feel before proceeding. I've even used an IR gun.
once bith hoses are close in temp, I usually still have cold air in cabin.
Take it out for a fast test drive and get instant hot air.
takes about 45 mins min and I've done it for as much as an hour or more before the final test drive.
I also have an airlift system, but haven't had a chance to try it. Puts a vacuum on the system and then uses venturi affect to refill it.
i don't use the bleeder valve, since it broke once when I was working and sprayed me with coolant.
install funnel
pour coolant
fill reservoir full
leave funnel full
start car heat on full
squeeze both hoses
rev car to about 2000 rpm several times
i go off how the radiator hoses feel before proceeding. I've even used an IR gun.
once bith hoses are close in temp, I usually still have cold air in cabin.
Take it out for a fast test drive and get instant hot air.
takes about 45 mins min and I've done it for as much as an hour or more before the final test drive.
I also have an airlift system, but haven't had a chance to try it. Puts a vacuum on the system and then uses venturi affect to refill it.
i don't use the bleeder valve, since it broke once when I was working and sprayed me with coolant.
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